Mark Changizi - Comments

Björn Brembs

Nice read: Neuroscientist’s Embarrassment: Artificial Intelligence’s Opportunity. Mark Changizi

August 31, 2010 from bjoern.brembs.blog :... - Comment - Like - Share

Jan Wessnitzer liked this

http://content.karger.com/Produkt... - Björn Brembs

Thanks! - Mark Changizi

Saboma

Yeah! ...The Vision Revolution made New Scientist's "Best Books of 2009&8243; story & Changizi Blog - http://changizi.wordpress.com/2010...

August 25, 2010 from StumbleUpon - Comment - Like - Share

Mark Changizi's book was picked up by New Scientist so we're celebrating! Hoorayyy! - Saboma

Thanks! - Mark Changizi

Mark Changizi

My open letter to Peter Jackson: "Hobbits Are Lame." http://changizi.wordpress.com/2010... (Now at my "The What For" blog.)

June 15, 2010 from Twitter - Comment - Like - Share

Changizi takes NZ???? - Kubke

Kicking hobbitses asses is what I do best. Mark - Mark Changizi from email

Björn Brembs

Scientific discoveries are like orgasms: there are no bad ones!

April 29, 2010 from bjoern.brembs.blog :... - Comment - Like - Share

The Neurocritic liked this

There are boring ones, though. Discoveries, I mean. :) - Mark Changizi

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Same for math. In math there are infinitely many theorems mathematicians could set out to prove, but only a relatively small "fraction" are remotely interesting. (Although what *exactly* makes the interesting ones interesting is enigmatic.) - Mark Changizi

Well, I'd take that as a another parallel, then :-) Add yet another one: there are fake ones! :-) - Björn Brembs

Come to think of it, I don't think I'd say boring, either. Less interesting, maybe. If it were truly boring, wouldn't that mean it would be known and then it wouldn't be a discovery? - Björn Brembs

Well, be careful with the rest of the analogy. Now what would you say of peer review? Reviewers have to reproduce the results (and reach the exact conclusion) or at least order it to be reproduced by the authors! - Ramy Karam Aziz

Mark Changizi

From the Hands of Babes: When Children Draw, Are They Really Writing? http://www.scientificblogging.com/mark_ch... [An excerpt from The Vision Revolution]

April 18, 2010 from Twitter - Comment - Like - Share

suze, Ashalynd, Björn Brembs and Kubke liked this

"And yet, despite being born without a “bridle,” your visual system is now saddled with reading." - Kubke

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Hey Fab, I still haven't figured out Friendfeed. Something must be wrong with me... -Mark - Mark Changizi

I can draw it for you :) - Kubke

Here's how I got into it: First I checked out people's subscriptions and subscribers to find out who posts interesting stuff. Then, I was back to FF constantly, just to get all this interesting info. Once I got to see that people were not only posting cool science, but also discussing it, I was hooked. - Björn Brembs

Thanks Bjorn. But do you also go on Twitter? Or only here? - Mark Changizi

I would also suggest looking into groups, which may aggregate topics rather than people. I only post in the groups when I think it may be of interest to them, but someone in there does not need to subscribe to me to see that. Using the best of week is a great feature. I have to say that I love that Bjoern posts his likes and comments through twitter, but because there is heaps of overlaps on interests. Agree with Bjoern, less about the post and more about the discussion - Kubke

I only go to Twitter every 2-3 days to see if someone tweeted something @myself (and on some special occasions of current developments, which is very rare). Twitter has no threaded discussions and everything drifts out of focus within minutes. Here, I can get "best of day" or week and all the interesting stuff stays on top for as long as it remains interesting. see also: http://bjoern.brembs.net/comment... - Björn Brembs

I often "like" something here because I want to broadcast it via Twitter and Facebook whenI think people ought to know about it. - Björn Brembs

The threaded discussion for me is the key. Most of you people do the interesting talking while I am sleeping here at the other end of the world. But I can always come back to it. Would be impossible on Twitter. - Kubke

Interesting. Twitter I've given up on keeping up with. Too stressful to even try! It's like email on crack. (I've developed a once-a-week Twitter regimen.) - Mark Changizi

ha ha! You don't need to go all yellow submarine on FF. Every time you 'like' something it will point it to your subscribers, and you will see what the people you subscribe to like because it will be moved to the top of your page. If you click on your name top right, you can then look at the discussions you liked or commented on and see if anything has been happening there (useful), and... more... - Kubke

Mark Changizi

"One side of argument is often well supported by peer-reviewed evidence, while other has no such backing." http://www.timesonline.co.uk/tol... @markgfh

February 22, 2010 from Twitter - Comment - Like - Share

Daniel Mietchen, Björn Brembs, Cameron Neylon and Kubke liked this

I like this 'for example' they give: "Embryo rights campaigners, for instance, are invited to question not only the morality of stem-cell research, on which they are as qualified to speak, but also its usefulness, on which they are not." - Kubke

Nice, indeed. Mark - Mark Changizi from email

sanki

Human Connectome Project | - http://humanbrainconnectome.com/

February 13, 2010 from delicious - Comment - Like - Share

mkz, Jean-Claude Bradley, Jo Young and 4 other people liked this

Nice! No hyping whatsoever in their description of the project. - Björn Brembs

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Right, it'll only change humanity forever. ;-) - sanki

No it won't :-) That's wishful thinking. They've known the connectome of Caenorhabditis elegans since 1986 and almost 25 years later, we still don't know what makes these 302 neurons a brain... - Björn Brembs

That's my refrain, too, Bjorn. If we can't make sense of C elegans despite our God's eye view of it, we're screwed for our 10^10 neuron brain... (I typically follow up with: We need much much more attention to the function of our nervous system. See 3rd paragraph and following of ... http://bit.ly/5A83Yn ) - Mark Changizi

Yes, Mark, love that post! Which is exactly why the current trend of dropping invertebrate model systems, ironically, does not bode well for human brain research. - Björn Brembs

I was just kidding, Bjorn, about the impact of the project. Remains to be seen, right? - sanki

Bjorn what do you think is missing in our understanding of the elegans brain? Hormonal effects? - Jean-Claude Bradley

@sanki - I figured, hence the :-) It will be very valuable and it of course is an extremely important and exciting project. There cannot be any proper biological understanding without anatomy! That doesn't mean that anatomy is all there is to know and I really appreciated the description of the project on the site which was exactly spot on. - Björn Brembs

@Jean-Claude - that's definitely one important aspect. But there are more: the dynamics with which the connectivity changes, the many different types of synapses and how dynamic transmitter release can change. Multiple transmitters being released from the same synapse. Receptor recycling/turnover, etc. Some if not all of these variables are under hormone or modulator control, which... more... - Björn Brembs

Bjorn - so there are no models that take into account the way transmitters are released and receptor behavior? That can't be a computational limit for the model building I would think. Is it just that the factors are all known but not all the measurements are in? - Jean-Claude Bradley

The 'connectome' is only about which neuron is connected to which. All the rest of it still has to be entered into the model. For some synapses, some of the dynamics are known. Given that each of the 100 billion human neurons connects to about 10,000 others, getting the total dynamics of each single connection will take some time, if it is technically possible. - Björn Brembs

no I was only talking about elegans - Jean-Claude Bradley

lol :-) That explains why I found your comment so confusing :-) I'm not really up to date on what the status for C. elegans is right now. I'm certain the C. elegans papers would read quite differently, if they had a working model of that brain :-) I have a lecture coming up in a month which may require me to do some reading in this regard. I will let you know should this happen. - Björn Brembs

thanks Bjorn - I would be interested to see what you find out. - Jean-Claude Bradley

Björn Brembs to Björn's feed, The Life Scientists

We don’t know jack - http://changizi.wordpress.com/2009...

January 12, 2010 from Bookmarklet - Comment - Like - Share

Mike Chelen, Jo Young and Mickey Schafer liked this

"Outsiders to the cognitive and brain sciences can sometimes get the impression that we brain scientists have nearly unraveled the riddles of the brain. While it is true that we are making great strides, the real question is, How far away from the finish line are we? Alas, I believe we are nowhere near the finish line; I put my money on several hundred years of brain-slogging left to go. Keep in mind that your brain is more complicated than the rest of the universe combined (minus all the other brains). Truth is, relative to what needs to be known, we don’t know jack." - Björn Brembs from Bookmarklet

Thanks for the RT! - Mark Changizi

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